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Hi. I am encountering the following problem with both Zimbra Desktop 2.0.1 and 7.0.1 (I updated in hopes that it would solve the problem, but it did not): I use Zimbra Desktop (on a computer running MacOS 10.6.8) in conjunction with my Yahoo Small Business account and now am completely unable to send ANY mail successfully. All letters are returned (as an attachment) in an email with the Subject Title "Delivery failed: SendMessage request failed: Method context doesn't exist" and the Body "Delivery failed: SendMessage request failed: Method context doesn't exist".